Clock (Holdover Clock) Alarms

Table 1 shows the critical, major, and minor Holdover Clock alarms and the clearing alarm that appears when each condition is resolved.

Clock (Holdover) Alarms
Critical		Normal
UAM	Text	UAM	Text
0063	Critical holdover clock trbl detected	0066	Holdover clock trouble cleared
Major		Normal
0064	Major holdover clock trouble detected	0066	Holdover clock trouble cleared
Minor		Normal
UAM	Text	UAM	Text
0065	Minor holdover clock trouble detected	0066	Holdover clock trouble cleared